{"id":1312,"date":"2019-10-01T12:27:57","date_gmt":"2019-10-01T10:27:57","guid":{"rendered":"http:\/\/evoluscience.fr\/?page_id=1312"},"modified":"2025-09-21T20:48:39","modified_gmt":"2025-09-21T18:48:39","slug":"activite-6","status":"publish","type":"page","link":"https:\/\/www.evoluscience.fr\/index.php\/cycle-4\/troisieme-2\/troisieme\/chapitre-3-hygiene-de-vie-et-systeme-immunitaire\/activite-6\/","title":{"rendered":"Activit\u00e9 6"},"content":{"rendered":"\n<div id=\"wp-block-themeisle-blocks-advanced-columns-f90fb467\" class=\"wp-block-themeisle-blocks-advanced-columns has-1-columns has-desktop-equal-layout has-tablet-equal-layout has-mobile-equal-layout has-vertical-unset\"><div class=\"wp-block-themeisle-blocks-advanced-columns-overlay\"><\/div><div class=\"innerblocks-wrap\">\n<div id=\"wp-block-themeisle-blocks-advanced-column-5a3e41bb\" class=\"wp-block-themeisle-blocks-advanced-column\">\n<p class=\"has-vivid-red-color has-text-color has-large-font-size\">IV. <strong>L\u2019utilisation par l\u2019Homme du syst\u00e8me immunitaire<\/strong><\/p>\n\n\n\n<div style=\"height:38px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-vivid-green-cyan-color has-text-color\"><strong>Comment l\u2019Homme utilise-t-il le\nfonctionnement du syst\u00e8me immunitaire pour le stimuler&nbsp;?<\/strong><\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-background\" style=\"background-color:#fee5c2\">Activit\u00e9 6&nbsp;: A partir des documents, expliquer comment fonctionne la vaccination et quel est son int\u00e9r\u00eat.<\/p>\n\n\n\n<div style=\"height:52px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p><em>Comp\u00e9tences travaill\u00e9es&nbsp;:<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><em>Communiquer \u00e0 l\u2019oral<\/em><\/li>\n\n\n\n<li><em>D\u00e9velopper son esprit critique<\/em><\/li>\n\n\n\n<li><em>Sensibiliser \u00e0 la sant\u00e9<\/em><\/li>\n<\/ul>\n\n\n\n<div style=\"height:48px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Capsule r\u00e9alis\u00e9e \u00e0 partir de la Vid\u00e9o concernant Louis Pasteur<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Tout savoir sur LOUIS PASTEUR \ud83e\ude7a\" width=\"1170\" height=\"658\" src=\"https:\/\/www.youtube.com\/embed\/UepgIZLLc7k?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p>Source : <a href=\"https:\/\/www.youtube.com\/watch?v=UepgIZLLc7k\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/www.youtube.com\/watch?v=UepgIZLLc7k<\/a><\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<a href=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2022\/10\/3-PC-Chp3Act6.pdf\" class=\"pdfemb-viewer\" style=\"\" data-width=\"max\" data-height=\"max\" data-toolbar=\"top\" data-toolbar-fixed=\"off\">3-PC-Chp3Act6<\/a>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>Un petit r\u00e9sum\u00e9 ici :<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 1280 \/ 720;\" width=\"1280\" controls poster=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2024\/11\/COMMENT-FONCTIONNE-UN-VACCIN-Les-essentiels-de-Jamy-mp4-image.png\" src=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2024\/11\/COMMENT-FONCTIONNE-UN-VACCIN-Les-essentiels-de-Jamy.mp4\"><\/video><\/figure>\n\n\n\n<p>Source : <a href=\"https:\/\/www.youtube.com\/watch?v=-M6Py71AmjU\" target=\"_blank\" rel=\"noopener\" title=\"\">https:\/\/www.youtube.com\/watch?v=-M6Py71AmjU<\/a><\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-black-color has-text-color has-background\" style=\"background-color:#bbfae1\"><strong>Ajout actualit\u00e9 concernant les vaccins contre la Covid-19 :<\/strong><\/p>\n\n\n\n<p>Le principe des vaccins \u00e0 acides nucl\u00e9iques (vaccins \u00e0 ARN (ou \u00e0 ADN)) est un peu diff\u00e9rent de celui expliqu\u00e9 pr\u00e9c\u00e9demment, m\u00eame si l\u2019id\u00e9e de base est bien \u00e9galement de confronter le syst\u00e8me immunitaire \u00e0 un \u00ab&nbsp;leurre&nbsp;\u00bb pour le pousser \u00e0 d\u00e9velopper des anticorps contre le virus.<\/p>\n\n\n\n<p>N\u00e9anmoins, dans le cas de ces nouveaux vaccins, il s\u2019agit de faire produire les fragments d\u2019agents infectieux directement par les cellules de l\u2019individu vaccin\u00e9. Pour cela, ce n\u2019est pas le virus dans sa forme att\u00e9nu\u00e9e qui est inject\u00e9 mais seulement des mol\u00e9cules d\u2019ADN ou d\u2019ARN&nbsp;codant pour des prot\u00e9ines de l\u2019agent pathog\u00e8ne. <\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/presse.inserm.fr\/wp-content\/uploads\/2020\/05\/c-dans-l-air-fake-virus-lab-466x328.jpg\" alt=\"\"\/><figcaption class=\"wp-element-caption\">Cette photo repr\u00e9sente le coronavirus SARS-CoV-2 responsable de la maladie COVID-19 observ\u00e9 en gros plan \u00e0 la surface d\u2019une cellule \u00e9pith\u00e9liale respiratoire humaine. Sa double membrane et sa couronne de glycoprot\u00e9ines sont bien visibles. Cr\u00e9dits : M.Rosa-Calatrava\/O.Terrier\/A.Pizzorno\/E.Errazuriz-cerda<\/figcaption><\/figure>\n\n\n\n<p>Le candidat vaccin de Pfizer\/BioNTech comme celui de Moderna sont des vaccins \u00e0 ARN. Ils reposent sur l\u2019injection d\u2019un ARN messager codant pour la prot\u00e9ine Spike pr\u00e9sente \u00e0 la surface du coronavirus SARS-CoV-2. Les cellules recevant l&rsquo;injection vont produire des prot\u00e9ines Spike \u00e0 partir de l&rsquo;ARN comme le feraient les cellules r\u00e9ellement infect\u00e9es par le virus. Cette prot\u00e9ine constitue la \u00ab&nbsp;cl\u00e9&nbsp;\u00bb permettant au virus de s\u2019accrocher aux cellules puis d\u2019y p\u00e9n\u00e9trer et de les infecter. Ce choix d\u2019un vaccin \u00e0 ARN plut\u00f4t que d\u2019un vaccin \u00e0 ADN a \u00e9t\u00e9 fait pour que la prot\u00e9ine Spike puisse \u00eatre produite directement dans le cytoplasme des cellules de la personne vaccin\u00e9e, sans passer par le noyau (pas de modification g\u00e9n\u00e9tique).<\/p>\n\n\n\n<p class=\"has-text-align-right\" style=\"font-size:10px\">D&rsquo;apr\u00e8s <a href=\"https:\/\/presse.inserm.fr\/les-vaccins-a-arnm-susceptibles-de-modifier-notre-genome-vraiment\/41781\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/presse.inserm.fr\/les-vaccins-a-arnm-susceptibles-de-modifier-notre-genome-vraiment\/41781\/<\/a><\/p>\n\n\n\n<div style=\"height:71px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><a href=\"http:\/\/evoluscience.fr\/index.php\/cycle-4\/troisieme-2\/troisieme\/chapitre-3-hygiene-de-vie-et-systeme-immunitaire\/activite-6\/conclusion\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"538\" height=\"538\" src=\"http:\/\/evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion.png\" alt=\"\" class=\"wp-image-370\" style=\"width:336px;height:336px\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion.png 538w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/conclusion-520x520.png 520w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><a href=\"http:\/\/evoluscience.fr\/index.php\/cycle-4\/troisieme-2\/troisieme\/chapitre-3-hygiene-de-vie-et-systeme-immunitaire\/activite-6\/devoirs\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"538\" height=\"538\" src=\"http:\/\/evoluscience.fr\/wp-content\/uploads\/2019\/09\/devoirs.png\" alt=\"\" class=\"wp-image-428\" style=\"width:315px;height:315px\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/devoirs.png 538w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/devoirs-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/devoirs-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/devoirs-520x520.png 520w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><a href=\"http:\/\/evoluscience.fr\/index.php\/cycle-4\/troisieme-2\/troisieme\/chapitre-3-hygiene-de-vie-et-systeme-immunitaire\/activite-6\/1323-2\/\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"538\" height=\"538\" src=\"http:\/\/evoluscience.fr\/wp-content\/uploads\/2019\/09\/bonus-1.png\" alt=\"\" class=\"wp-image-372\" style=\"width:349px;height:349px\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/bonus-1.png 538w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/bonus-1-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/bonus-1-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2019\/09\/bonus-1-520x520.png 520w\" sizes=\"auto, (max-width: 538px) 100vw, 538px\" \/><\/a><\/figure>\n<\/div>\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/evoluscience.fr\/wp-content\/uploads\/2020\/03\/3-PC-Chp3Act6-FC.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><img loading=\"lazy\" decoding=\"async\" width=\"735\" height=\"735\" src=\"https:\/\/evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1.png\" alt=\"\" class=\"wp-image-4366\" style=\"width:395px;height:395px\" srcset=\"https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1.png 735w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-300x300.png 300w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-150x150.png 150w, https:\/\/www.evoluscience.fr\/wp-content\/uploads\/2020\/03\/pjiece_jointe-1-520x520.png 520w\" sizes=\"auto, (max-width: 735px) 100vw, 735px\" \/><\/a><\/figure>\n<\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":1246,"menu_order":7,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"c2tw_page_folder":[],"class_list":["post-1312","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/1312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/comments?post=1312"}],"version-history":[{"count":0,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/1312\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/pages\/1246"}],"wp:attachment":[{"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/media?parent=1312"}],"wp:term":[{"taxonomy":"c2tw_page_folder","embeddable":true,"href":"https:\/\/www.evoluscience.fr\/index.php\/wp-json\/wp\/v2\/c2tw_page_folder?post=1312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}